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Mercruiser 470, just had this motor put in, I'm on the 3rd
Mercruiser 470, just had this motor put in, I'm on the 3rd outing. Anyways I have water in the oil.... No moisture under the circulating weep hole, never got hot actually ran real cool and had plenty … read more
Jason
Jason
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Vocational, Technical or Trade School
22,043 satisfied customers
Why do I have antifreeze coming out lower unit water intake
Why do I have antifreeze coming out lower unit water intake on 470 mercruiser I replaced heat exchanger thinking that was my problem then noticed leaking antifreeze… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,507 satisfied customers
I just put the battery back in my boat with a 1983 Merc cruiser
I just put the battery back in my boat with a 1983 Merc cruiser 170 with water cooled voltage regulator and as soon as I connected the battery the voltage regulator smoked and melted. Any ideas why? T… read more
Tan
Tan
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I have a 1984 MCM 165. It is not charging.The engine had an
I have a 1984 MCM 165. It is not charging.The engine had an over heat earlier this year. I went through the trouble shooting guide, and not only was there electrical poding melting down the front of t… read more
K. Kergan
K. Kergan
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Vocational, Technical or Trade Scho
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Hi Tan, quick question - on a boat with dual Mercruiser 470s,
Hi Tan, quick question - on a boat with dual Mercruiser 470's, would it be possible to disconnect a failed voltage regulator on the Port motor, and still operate both engines (the motor with a failed … read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,396 satisfied customers
I have a 1980 chris craft scorpion with a mercruiser 470.
I have a 1980 chris craft scorpion with a mercruiser 470. I didn't see an alternator. How is my battery receiving a charge? My dad seems to think that it has a starter generator. Does it?… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,507 satisfied customers
I require two replacment cooling hosed for 470 engine Water
I require two replacment cooling hosed for 470 engine Water pump to maifold where can I purchase these as they are no longer available from Mercury I believe… read more
orcamarine
orcamarine
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Vocational, Technical or Trade Scho
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Hello! I have a 1987 Mercruiser 4IL Cylinder 165 HP 224
Hello! I have a 1987 Mercruiser 4IL Cylinder 165 HP 224 c.i. engine. The front water pump has started leaking from the weep hole. I have purchased a 3-gasket set (27-68714A 7 or 18-4380) and 2 water p… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
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i have a 26 f cruisers inc with two 470 i know most boaters
i have a 26 f cruisers inc with two 470 i know most boaters dont like ut this two re rely good now i exchange the alternator and i still get 11.9v on my gps this is the kit with a one wire alternator … read more
K. Kergan
K. Kergan
Inboard/Outboard Mechanic
Vocational, Technical or Trade Scho
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I have a 1984 commando bomber w. mercruiser 470 has new impeller,
I have a 1984 commando bomber w. mercruiser 470 has new impeller, 4'' exchanger & thermostat & it still overheating, Any ideas thanks also confirmed good volume of waterflow thru open loop. Whats a pr… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,507 satisfied customers
I have a 24 foot sport craft wisth twin 470 merc . Engines
I have a 24 foot sport craft wisth twin 470 merc . Engines are locked up due to 10 years of no use. Overhaul , v6, i6>… read more
K. Kergan
K. Kergan
Inboard/Outboard Mechanic
Vocational, Technical or Trade Scho
1,031 satisfied customers
I have a 1982 Merc 470 that has a tendency to overcharge when
I have a 1982 Merc 470 that has a tendency to overcharge when R.P.M. exceeds approximately 2800. The voltmeter suddenly jumps from 12.5 or 13 volts to top of gauge. I can prevent this by turning on bi… read more
Dominick
Dominick
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Vocational, Technical or Trade Scho
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i have a older sangster boat and want to hook an auxillary
i have a older sangster boat and want to hook an auxillary heater to the 470 mercruiser engine is this a safe thing to do ie will the water pump handle the extra fluid movement required and also is th… read more
John White
John White
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Vocational, Technical or Trade Scho
306 satisfied customers
I have a Merc 470 inboard and want to eliminate closed cooling
I have a Merc 470 inboard and want to eliminate closed cooling system and install alternator to replace stator charging system. Can this be done and how difficult?… read more
Dominick
Dominick
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Hi, It seems the freshwater coolant circle of one of the two
1980 Mercruiser 470 freshwater coolant cycle clogged. I bought the Sea Ray 260 a while ago and started today for the first time the engines. The left engine runs fine after correcting the ignition cab… read more
gearheadII
gearheadII
Bachelor's Degree
138 satisfied customers
Hi. I have a mercruiser 470 inbord and my voltage regulater
Hi. I have a mercruiser 470 inbord and my voltage regulater went out is there a way to repace it with a marine altinator or would it be to hard and costly to do so… read more
Pappy's Sales and Service
Pappy's Sales and Service
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86 3.7 mercruiser with closed cooling system. Overheated and
86 3.7 mercruiser with closed cooling system. Overheated and when I fill the cooling system water leaks out the back of boat… read more
Michael
Michael
master marine technician/charter captain
Vocational, Technical or Trade Scho
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I have a mercruiser 470 circa 1980 which is still in the ...
I have a mercruiser 470 circa 1980 which is still in the boat my dad bought when I was in High School. It has not been in service since 1993 or so, and I''d like to get it running again. Aside from th… read more
Michael
Michael
master marine technician/charter captain
Vocational, Technical or Trade Scho
256 satisfied customers
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Ted G.

Ted G.

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Jason

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Jeff G.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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